Dress Code Cosmos Club Here is the official dress code for district CDC. All competitors must wear professional business attire. Males must wear a suit, official DECA blazer or sport coat with dress slacks, a collared United States President John F. Kennedy attends the 32nd All Star Baseball Game at D.C. Stadium and throws out the first ball on July 10, 1962. Pictured VIPs include: Speaker of the U.S. Villanova Knicks at Capital Center January 6th The Stadium Club 2012 Howard Homecoming Concert Series